With the development of cardiac interventional technology, the use of interventional methods for the radical treatment of certain congenital heart diseases without opening the chest has become increasingly mature. This method has the advantages of less trauma, less pain, higher success rate, shorter hospital stay and no postoperative scars, etc. It has partially replaced surgical procedures and is favored by the majority of patients. This method is guided by X-ray fluoroscopy and cardiac ultrasound, and after local anesthesia, a cardiac catheter is sent through the skin of the blood vessel at the root of the thigh to push the blocking umbrella along the blood vessel to the lesion site, and the umbrella surface is opened to close the atrial septal defect or the unclosed arterial duct, etc., so as to achieve the purpose of radical treatment of congenital heart disease, and the patient can live a normal life 24 hours after the operation and be discharged from the hospital in 3-5 days.